port=0 interface={{ api_interface }} bind-interfaces dhcp-range={{ ironic_dnsmasq_dhcp_range }} dhcp-sequential-ip dhcp-option=option:tftp-server,{{ kolla_internal_vip_address }} dhcp-option=option:server-ip-address,{{ kolla_internal_vip_address }} dhcp-option=option:bootfile-name,pxelinux.0 dhcp-option=210,/tftpboot/